Apparatus for the injection molding of a metal alloy: sub-ring c

Details Apparatus for the injection molding of a metal alloy: sub-ring c Apparatus for the injection molding of a metal alloy: sub-ring c

1996-10-23

1997-10-28

Hail, III, Joseph J.

Metal founding

Means to shape metallic material

Pressure shaping means

164113, 164900, B22D 1700, B22D 1300

Patent

active

056808941

ABSTRACT:
The present invention reveals an improvement in an apparatus for injection molding a metallic material having dendritic properties. In the improvement, a sub-ring is placed under a piston ring on a sliding seal ring of a non-return valve assembly. The sub-ring seals the pressure and metal flow in the apparatus, virtually eliminates piston ring leakage and extends the usable life of the non-return valve assembly.

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